Hair drier



FIG. 1 is a front perspective view of the hair drier showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a back view thereof;

FIG. 4 is a left view thereof where the right view is a mirror image;

FIG. 5 is a top view thereof;

FIG. 6 is a bottom view thereof;

FIG. 7 is a back perspective view thereof; and,

FIG. 8 is a reference view showing the state of use in which the display part is operated.

The broken lines depict portions of the hair drier that form no part of the claimed design. 

CLAIM The ornamental design for a hair drier, as shown and described. 